Ivanov, IgorKheifets, Anatoli2015-12-071434-6060http://hdl.handle.net/1885/18640We apply a non-perturbative procedure for the calculation of the total photoionization cross-section of two-electron atomic systems. The procedure is based on the Floquet-Fourier representation of the time-dependent Schrödinger equation. With the use of200610.1140/epjd/e2005-00334-y2015-12-07